Merge pull request #30 from hgloeckner/int_p_log

option to interp p in log space

pydropsonde/processor.py

@@ -1080,6 +1080,7 @@ def interpolate_alt(
         interp_stop=14515,
         interp_step=10,
         max_gap_fill: int = 50,
+        p_log=True,
         method: str = "bin",
     ):
         """
@@ -1092,7 +1093,8 @@ def interpolate_alt(
                 f"your altitude for sonde {self._prep_l3_ds.sonde_id.values} is not sorted."
             )
         ds = self._prep_l3_ds.swap_dims({"time": alt_var}).load()
-
+        if p_log:
+            ds = ds.assign(p=(ds.p.dims, np.log(ds.p.values)))
         if method == "linear_interpolate":
             interp_ds = ds.interp({alt_var: interpolation_grid})
         elif method == "bin":
@@ -1131,6 +1133,9 @@ def interpolate_alt(
                 .rename({f"{alt_var}_bins": alt_var, "time": "interpolated_time"})
             )
 
+        if p_log:
+            interp_ds = ds.assign(p=(ds.p.dims, np.exp(ds.p.values)))
+
         object.__setattr__(self, "_prep_l3_ds", interp_ds)
 
         return self